Random projections of linear and semidefinite problems with linear inequalities
Random projections of linear and semidefinite problems with linear inequalities
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具有线性不等式的线性和半定问题的随机投影
DOI:
10.1016/j.laa.2023.01.013
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发表时间:
2023
影响因子:
1.1
通讯作者:
Takeda Akiko
中科院分区:
文献类型:
--
作者:
Poirion Pierre-Louis;Lourenco Bruno F.;Takeda Akiko
The Johnson-Lindenstrauss Lemma states that there exist linear maps that project a set of points of a vector space into a space of much lower dimension such that the Euclidean distance between these points is approximately preserved. This lemma has been previously used to prove that we can randomly aggregate, using a random matrix whose entries are drawn from a zero-mean sub-Gaussian distribution, the equality constraints of an Linear Program (LP) while preserving approximately the value of the problem. In this paper we extend these results to the inequality case by introducing a random matrix with non-negative entries that allows to randomly aggregate inequality constraints of an LP while preserving approximately the value of the problem. By duality, the approach we propose allows to reduce both the number of constraints and the dimension of the problem while obtaining some theoretical guarantees on the optimal value. We will also show an extension of our results to certain semidefinite programming instances.
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DOI:
10.1287/moor.2016.0793
发表时间:
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期刊:
Math. Oper. Res.
影响因子:
--
作者:
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通讯作者:
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影响因子:
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ArXiv
影响因子:
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影响因子:
1.7
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影响因子:
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